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- CHEMISTERY class - 6 ( Electronic configuration elements compounds & mixture ) by Khan sir
- CHEMISTRY class - 7 Elements ( Metal-non,Metalloids ) by Khan sir
- CHEMISTRY class - 8 ( Mixtures & Compounds ) by Khan sir
- CHEMISTRY class - 5 ( isotopes, isobars , isotones ) by Khan sir
- CHEMISTRY class - 4 Railway important questions by Khan sir
- CHEMISTRY class - 3 by Khan sir
- CHEMISTRY class - 9 ( periodic table & chemical bonding ) by Khan sir
- CHEMISTRY class - 10 ( chemical bonding Ianic & covalent bonds ) by Khan sir
- CHEMISTRY class - 11( coordinate bond ,hydrogen bond & vanderwell force ) by Khan sir
- CHEMISTRY class - 13 ( Radio activity) by Khan sir
- CHEMISTRY class - 14 ( PH scale & PH value ) by Khan sir
- CHEMISTRY class - 15 ( Acid, Base & Salt ) by Khan sir
- CHEMISTRY class - 16 GASES( Law of gases,ideal gases ) by Khan sir
- CHEMISTRY class - 17 (Law of Avogadro s ) by Khan sir